[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 201759
SWOMCD
SPC MCD 201759 
MNZ000-WIZ000-SDZ000-201930-

MESOSCALE DISCUSSION 1402
NWS STORM PREDICTION CENTER NORMAN OK
1259 PM CDT MON JUN 20 2005

AREAS AFFECTED...EASTERN SOUTH DAKOTA AND SOUTHERN MINNESOTA

CONCERNING...SEVERE THUNDERSTORM POTENTIAL 

VALID 201759Z - 201930Z

BOUNDARY FROM ONGOING SEVERE STORMS CENTRAL MN TRAILS WSWWD INTO E
CENTRAL SD.  S OF BOUNDARY WITH DEWPOINTS INTO LOW 70S AND
TEMPERATURES TO NEAR 90F THE AIR MASS HAS BECOME EXTREMELY UNSTABLE
WITH MLCAPES TO 4000 J/KG.  AN ISOLATED SEVERE STORM HAS DEVELOPED
OVER SPINK COUNTY SD IN RESPONSE TO LIFT OF THIS UNSTABLE AIR MASS
NWD ACROSS THE BOUNDARY.  WITH CONTINUED HEATING SEVERE
THUNDERSTORMS WILL BECOME MORE LIKELY ALONG AND N OF THIS E/W
BOUNDARY WITH POSSIBLY ISOLATED SUPERCELLS GIVEN THE EXTREME
INSTABILITY.

A WATCH COULD BE ISSUED WITHIN THE NEXT HOUR OR SO FROM ERN SD INTO
SRN MN.

..HALES.. 06/20/2005

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...ARX...MPX...FSD...ABR...

45269822 45399714 45439592 45519477 45689324 45519274
44779231 43939253 43819440 43849641 44089792 

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